NRF52832 current consumption problem

[secondbest]

Hi;

I am using NRF52 DK(pca10040) board nowadays with sdk 14.0. I read a blog post about power consumption in nordic webpage.(link) In this blog post, there is a webpage to calculate average current consumption of nrf52832 devices.(link)

According to the calculation in the webpage; NRF52832 average current consumption is 67uA for 3V, 31 byte tx payload, 4dB power and 250ms advertisement interval. However, I measure 95uA for 3V, 31 byte tx payload, 4dB power and 250ms advertisement interval with nrf52 dk in real life condition(Min: 0.001mA, Max: 0.346mA Ave: 0.095mA). Also, nrf51822qfaa is consumed 107uA at the same condition(3V, 31 byte tx payload, 4dB power and 250ms advertisement interval). I used fluke 289 to measure current consumption of the nrf52 dk and nrf51.

There is a significant difference between my measurement and what the web page said.(95uA vs 67uA) Is this normal? What am i doing wrong? Any suggestions?

Thanks.

Edit..... I measured 96uA average current by using "ble_app_beacon" example code with 250ms advertisement interval. I hope it can give us a comparision point.

[AmbystomaLabs]

Trying to measure current consumption on a DK would be difficult at best. The DK's have a lot of peripheral GPIO and permanently connected SWD to the segger.
You really need to sever all these connections and power the nRF independently. The gpio can allow current to pass into and out of the device. Also you want to make sure you are not trying to power the segger while you measure.